... optional) & voice monitoring function;7. Vibration alert, door open alert, movement alert and ignition on alert;8. ... fence alert (radius range: 0.1~99KM);12. Over-speed alert (speed range:1~255km/h);13. ... In arm status, following operations will trigger alarm: door open, engine on, shake, cut-off power. ... will trigger this alarm. Over-speed Alarm If the car/motorcycle runs over the speed limitation, it ...